EP 3607142 B1 20231004 - PRODUCTION OF PAPER THAT IS HIGHLY STRETCHABLE IN THE CROSS DIRECTION
Title (en)
PRODUCTION OF PAPER THAT IS HIGHLY STRETCHABLE IN THE CROSS DIRECTION
Title (de)
HERSTELLUNG VON STARK IN QUERRICHTUNG DEHNBAREM PAPIER
Title (fr)
PRODUCTION DE PAPIER HAUTEMENT ÉTIRABLE DANS LA DIRECTION TRANSVERSALE
Publication
Application
Priority
- EP 17165149 A 20170406
- EP 2018058713 W 20180405
Abstract (en)
[origin: EP3385444A1] There is provided a method of producing a paper having a grammage according to ISO 536 of 50-250 g/m 2 , a Gurley value according to ISO 5636-5 of above 15 s and a stretchability according to ISO 1924-3 in the cross direction of at least 8 %, said method comprising the steps of: a) providing a pulp, preferably sulphate pulp; b) subjecting the pulp to refining; c) diluting the pulp from step b) and discharging the diluted pulp at a discharge rate to a forming wire to form a paper web, wherein the speed of the forming wire is at least 7 m/min higher or at least 7 m/min lower than the discharge rate; d) pressing the paper web from step c); e) drying the paper web from step d), which drying comprises a step of compacting the paper web in a Clupak unit.
IPC 8 full level
D21H 25/00 (2006.01); D21F 5/00 (2006.01); D21H 11/04 (2006.01); D21H 27/00 (2006.01); D21H 27/10 (2006.01)
CPC (source: EP US)
D21C 9/007 (2013.01 - EP); D21D 1/20 (2013.01 - EP US); D21F 5/028 (2013.01 - US); D21F 9/02 (2013.01 - US); D21F 11/00 (2013.01 - EP); D21H 11/04 (2013.01 - EP US); D21H 25/005 (2013.01 - EP); D21H 27/00 (2013.01 - EP); D21H 27/10 (2013.01 - EP)
Citation (examination)
WO 9964963 A1 19991216 - HONEYWELL MEASUREX CORP [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3385444 A1 20181010; EP 3385444 B1 20190424; AU 2018247907 A1 20190314; AU 2018247907 B2 20220908; BR 112019016606 A2 20200331; BR 112019016606 B1 20231121; CA 3048098 A1 20181011; CN 110291250 A 20190927; EP 3607142 A1 20200212; EP 3607142 B1 20231004; FI 3607142 T3 20231228; PL 3385444 T3 20200131; PL 3607142 T3 20240402; RU 2019122383 A 20210506; RU 2019122383 A3 20210618; US 2020181842 A1 20200611; WO 2018185213 A1 20181011
DOCDB simple family (application)
EP 17165149 A 20170406; AU 2018247907 A 20180405; BR 112019016606 A 20180405; CA 3048098 A 20180405; CN 201880009917 A 20180405; EP 18717000 A 20180405; EP 2018058713 W 20180405; FI 18717000 T 20180405; PL 17165149 T 20170406; PL 18717000 T 20180405; RU 2019122383 A 20180405; US 201816500318 A 20180405